Ceramic matrix composite production by directed melt oxidation of pure aluminium metal using spinel dopants

Roslinda Shamsudin, R. J. Hand

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The production of Al2O3 matrix composites by directed melt oxidation of pure Al externally doped with spinel type dopants has been investigated. The presence of any one of MgAl2O4, LiAlO2, and ZnAl2O4 resulted in oxide growths in a similar fashion to the growths produced using elemental Mg, Li, and Zn. Rapid growth was achieved at 1180°C with MgAl2O4 and at 900°C with LiAlO2. The growth rates at 1180°C of the samples doped with ZnAl2O4 were less rapid than the growth rates of the samples doped with MgAl2O4. The fact that growth is initiated by mixed oxide spinel dopants is further evidence in support of the cyclic reaction sequences that have been proposed for directed melt oxidation.

Original languageEnglish
Pages (from-to)55-60
Number of pages6
JournalBritish Ceramic Transactions
Volume100
Issue number2
Publication statusPublished - 2001

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Ceramic matrix composites
Aluminum
Metals
Doping (additives)
Oxidation
Oxides
spinell
Composite materials

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Ceramic matrix composite production by directed melt oxidation of pure aluminium metal using spinel dopants. / Shamsudin, Roslinda; Hand, R. J.

In: British Ceramic Transactions, Vol. 100, No. 2, 2001, p. 55-60.

Research output: Contribution to journalArticle

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